[Analysis of soil components along water channel of east route of South-to-North Water Diversion Project].

Objective: To explore the relationship between the soil components along the areas of the east route of the Southto-North Water Diversion Project and the survival situation of snails.

Methods: Four study sites were selected along the project, and soil samples were collected to analyze the components. The amounts of components among the different study sites were compared statistically.

[Soil-transmitted nematode infections and cognitive behavior in rural residents of Dezhou City in 2011].

Objective: To understand the status of soil-transmitted nematode infections, as well as the awareness and healthy behavior on soil-transmitted nematodiasis in rural residents of Dezhou City.

Methods: Six villages were selected according to the stratified sampling method; the permanent resident population aged 3 years or above was determined as the investigation objects. The modified Kato-Katz technique was adopted to detect the eggs of Ascaris lumbricoides, hookworm and Trichuris trichiura in the feces of the residents, and the method of cellophane anal swab was used to detect the Enterobius vermicularis infection in children under 12 years old.